(:*******************************************************:)
(: Test: K-dateTimesSubtract-1                           :)
(: Written by: Frans Englich                             :)
(: Date: 2007-11-22T11:31:21+01:00                       :)
(: Purpose: Simple testing involving operator '-' between xs:date and xs:date that evaluates to zero. :)
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xs:dateTime("1999-07-19T08:23:12.765")
		- xs:dateTime("1999-07-19T08:23:12.765")
		eq xs:dayTimeDuration("PT0S")